Cooperative measles vaccine field trial. I. Clinical efficacy.
D002648:Child; D002675:Child, Preschool; D002986:Clinical Trials as Topic; D005260:Female; D005500:Follow-Up Studies; D005845:Georgia; D006801:Humans; D007115:Immunization Schedule; D008297:Male; D008458:Measles Vaccine; D009518:New York; D009820:Ohio; D010919:Placebos; D014611:Vaccination; D014861:Washington
D008458:Measles Vaccine; D010919:Placebos